" In volute cylindrical gear , external gearing , large modulus "

渐开线圆柱齿轮外啮合大模数

" In volute cylindrical gear , external gearing , minor modulus "

渐开线圆柱齿轮外啮合小模数

This paper mainly researches the change principle of the volute section configuration , the volute section area and the diffuser . Based on the research , an improved program is put forward .

本文对蜗壳截面形状、蜗壳截面面积变化规律以及扩压器等方面进行研究，提出了改进方案。